Mixed H₂/H_∞ Optimal PID Control for Superheated Steam Temperature System

Authors

Weiping Liang, Department of Automation, North China Electric Power University, Baoding 071003, China;
Jiarong Wang, Department of Automation, North China Electric Power University, Baoding 071003, China;

Abstract

Abstract: Aiming at the non-linear, large inertial, uncertain parameters and multi-disturbances of the main steam temperature object in power plants, a mixed H₂/H_∞ optimal PID control scheme was designed. The multiplicative perturbed boundary of the H_∞ and the effective range of the PID controller parameters were given under the system being closed-loop stability. An improved gravitational search algorithm was proposed in order to obtain optimum performance indicators. The effectiveness of the algorithm was supported through testing on typical test functions, then the algorithm was applied to optimize the parameters of the main steam temperature system Mixed H₂/H_∞ optimal PID controller. Simulation results show that the optimized main steam temperature control system has good control quality, and unknown disturbance can be overcome, and has strong robustness.

Recommended Citation

Liang, Weiping and Wang, Jiarong (2020) "Mixed H₂/H_∞ Optimal PID Control for Superheated Steam Temperature System," Journal of System Simulation: Vol. 28: Iss. 3, Article 21.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss3/21

First Page

661

Revised Date

2014-12-19

DOI Link

https://doi.org/

Last Page

667

CLC

TP273

Recommended Citation

Liang Weiping, Wang Jiarong. Mixed H₂/H_∞ Optimal PID Control for Superheated Steam Temperature System[J]. Journal of System Simulation, 2016, 28(3): 661-667.